KR101862970B1 - Elevator apparatus - Google Patents

Abstract

In the elevator apparatus, a lower emergency stop device 14 is mounted on the lower part of the car 8, and an upper emergency stop 15 is mounted on the upper part of the car. The lower emergency stop is provided with a lower lifting lever 16 for operating the lower emergency stop by being pulled up by the governor rope 20. The upper emergency stop is provided with an upper lifting lever 17 which is operated by the upper emergency stop by being pulled up by the governor rope. Between the lower lifting lever and the governor rope, a lower elastic body 35 is provided. Between the upper lifting lever and the governor rope, an upper elastic body 36 is provided.

Description

[0001] ELEVATOR APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus in which an emergency stop device is mounted on upper and lower sides of an elevator car.

In a conventional emergency stop device for an elevator, an upper braking mechanism is housed in an upper frame of a car, and a lower braking mechanism is housed in a lower frame of the car. The governor rope is coupled to the lever of the upper braking mechanism. The lower braking mechanism is connected to the upper braking mechanism via a connecting rod. Therefore, when the governor rope is gripped and the lever of the upper braking mechanism is operated, the lever of the lower braking mechanism is also operated so that the upper braking mechanism and the lower braking mechanism operate simultaneously. Thus, the upper braking mechanism and the lower braking mechanism can be downsized (see, for example, Patent Document 1).

Patent Document 1: JP-A-1-299179

In the above-described conventional emergency stop device for an elevator, it is necessary to accurately adjust the length of the connecting rod in order to simultaneously operate the upper braking mechanism and the lower braking mechanism, the installation work is difficult, and the workability is low.

An object of the present invention is to provide an elevator device capable of more reliably operating the lower emergency stop device and the upper emergency stop device while improving workability in the field.

An elevator apparatus according to the present invention is an elevator apparatus comprising an elevator body, a lower emergency stop device mounted on a lower portion of the elevator body, an upper emergency stop device mounted on an upper portion of the elevator body, And a lower lifting lever provided on the governor rope and the lower emergency stop so as to be circulated in accordance with the ascending and descending of the ascending / descending body and operated by pulling up by the governor rope, and a lower lifting lever provided on the upper emergency stop The upper lifting lever for lifting up the upper emergency stop by lifting by the governor rope and the presence or absence of traveling at an excessive speed of the lifting body are monitored and the traveling speed of the lifting body is set at an excessive speed When it reaches, it has a governor that grasps the governor rope and operates the lower emergency stop and the upper emergency stop , In between the lower lifting lever and the governor rope, and the lower elastic member provided, between the upper and the lifting lever and a governor rope, it is provided with an upper elastic member.

Further, the elevator apparatus according to the present invention is characterized in that the elevator apparatus includes an elevator, a lower emergency stop mounted on the lower part of the elevator, an upper emergency stop mounted on the elevator, Therefore, the governor rope provided in the circulating traveling governor rope and the lower emergency stop device is provided in the lower emergency stop device for operating the lower emergency stop device by being pulled up by the governor rope, and is pulled up by the governor rope The upper lifting lever for operating the upper emergency stop device and the presence or absence of traveling at the excessive speed of the lifting body are monitored and when the traveling speed of the lifting body reaches the excessive speed, the governor rope is gripped and the lower emergency stop And a governor for operating the upper emergency stop, wherein the speed governor rope, Up lever and the upper lifting lever, and is provided with an elastic body between one of the lifting lever and the upper lifting lever so that the rotation stroke of the lower lifting lever until the lower emergency stopping device operates and the upper pulling- The rotation stroke of the lifting lever is different in advance.

INDUSTRIAL APPLICABILITY The elevator device of the present invention can more reliably operate the lower emergency stop device and the upper emergency stop device while improving workability in the field.

1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
Fig. 2 is an enlarged front view of the elevator car of Fig. 1; Fig.
Fig. 3 is an enlarged front view showing a main part of the lower emergency stop of Fig. 1; Fig.
4 is a sectional view taken along the line IV-IV in Fig.
Fig. 5 is a front view showing the state of the lower emergency stop in Fig. 3 during operation. Fig.
6 is a sectional view taken along the line VI-VI in Fig.
7 is a front view showing an elevator car of an elevator apparatus according to Embodiment 2 of the present invention.
8 is a plan view showing the lower lifting lever and the upper lifting lever of Fig. 7;
9 is a front view showing the case where the initial lifting angles of the lower lifting lever and the upper lifting lever of FIG. 7 are different from each other.
10 is a front view showing a state in which the upper lifting lever of Fig. 9 is rotated to the operating position.
11 is a front view showing a state in which the lower lifting lever of Fig. 10 is rotated to the operating position.
12 is a front view showing an elevator car of an elevator apparatus according to Embodiment 3 of the present invention.
FIG. 13 is a front view showing a case where initial angles of the lower lifting lever and the upper lifting lever of FIG. 12 are different.
14 is a front view showing a state in which the lower lifting lever in Fig. 13 is rotated to the operating position.
15 is a front view showing a state in which the upper lifting lever of Fig. 14 is rotated to the operating position.
16 is a front view showing an elevator car of an elevator apparatus according to Embodiment 4 of the present invention.
17 is a front view showing a state in which the lower emergency stop and the upper emergency stop of Fig. 16 are operated.
18 is a front view showing an elevator car of an elevator apparatus according to Embodiment 5 of the present invention.
19 is a front view showing a state in which the upper lifting lever of Fig. 18 is rotated to the operating position.
20 is a front view showing a state in which the lower lifting lever in Fig. 19 is rotated to the operating position.
21 is a front view showing an elevator car of an elevator apparatus according to Embodiment 6 of the present invention.
22 is a front view showing an elevator car of an elevator apparatus according to Embodiment 7 of the present invention.
23 is a front view showing a state in which the lower lifting lever of Fig. 22 is rotated to the operating position.
24 is a front view showing a state in which the upper lifting lever of Fig. 23 is rotated to the operating position.
25 is a front view showing an elevator car of an elevator apparatus according to Embodiment 8 of the present invention.
26 is a front view showing an elevator car of an elevator apparatus according to Embodiment 9 of the present invention.
27 is a front view showing an elevator car of an elevator apparatus according to Embodiment 10 of the present invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

Embodiment 1

1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the drawing, a machine room 2 is provided at an upper portion of a hoistway 1. In the machine room 2, a traction machine (drive device) 3, a deflector pulley 4, and a control device 5 are provided. The traction machine 3 includes a drive sheave 6, a traction machine motor (not shown) for rotating the drive sheave 6, and a traction machine brake (not shown) for braking the rotation of the drive sheave 6 Have.

The suspension body 7 is wound around the drive sheave 6 and the deflector pulley 4. As the suspension member 7, a plurality of ropes or a plurality of belts are used. At the first end of the suspension member 7, the elevator car 8, which is ascending and descending, is connected. A balance weight 9 is connected to the second end of the suspension member 7.

The elevator car 8 and the balance weight 9 are suspended in the hoistway 1 by the suspension member 7 and ascend and descend in the hoistway 1 by the driving force of the hoist 3. The control device 5 controls the rotation of the hoisting machine 3 to elevate the elevator car 8 at the set speed.

A pair of elevator car guide rails 10 for guiding the elevator car 8 up and down and a pair of counterweight guide rails 11 for guiding the elevation of the balance weight 9 are installed in the hoistway 1 have. At the bottom of the hoistway 1, an elevator car cushioning device 12 and a counterweight cushioning device 13 are provided. The car damper 12 relieves the impact of the collision of the car 8 to the bottom of the hoistway 1. Likewise, the balancer shock absorber 13 relaxes the impact of the impact of the balance weight 9 on the bottom of the hoistway 1.

A lower emergency stop device 14 is mounted on a lower portion of the car 8. An upper emergency stop device 15 is mounted on the upper portion of the car 8. As shown in Fig. The lower emergency stop device 14 and the upper emergency stop device 15 hold the car door guide rail 10 to stop the car 8 in an emergency. In this example, the lower emergency stop device 14 and the upper emergency stop device 15 generate the same braking force.

The lower emergency stop (14) is provided with a lower lifting lever (16) for operating the lower emergency stop (14). The upper emergency stop 15 is provided with an upper lifting lever 17 for operating the upper emergency stop 15.

The machine room 2 is provided with a governor 18 for monitoring the presence or absence of running at an excessive speed of the elevator car 8. [ The governor 18 has a governor sheave 19, an overspeed detection switch, a rope catch, and the like. In the governor sheave 19, the governor rope 20 is wound around.

The governor rope 20 is laid annularly in the hoistway 1 and connected to the lower lifting lever 16 and the upper lifting lever 17. That is, the governor rope 20 is connected to the elevator car 8 via the lower emergency stop device 14 and the upper emergency stop device 15.

The governor rope 20 is wound around a tension pulley 21 disposed at a lower portion of the hoistway 1. [ When the elevator car 8 ascends and descends, the governor rope 20 circulates and the governor sheave 19 rotates at a rotational speed corresponding to the running speed of the car 8.

In the governor 18, it is mechanically detected that the running speed of the car 8 has reached an excessive speed. As the detected excessive speed, the first excessive speed Vos higher than the rated speed Vr and the second excessive speed Vtr higher than the first excessive speed are set.

When the running speed of the car 8 reaches the first excessive speed Vos, the overspeed detection switch is operated. As a result, the power supply to the hoisting machine 3 is cut off, and the elevator car 8 stops urgently.

When the descent speed of the car 8 reaches the second overspeed velocity Vtr, the governor rope 20 is gripped by the rope catch, and the circulation of the governor rope 20 is stopped. As a result, the lower lifting lever 16 and the upper lifting lever 17 are pulled up to operate the lower emergency stop 14 and the upper emergency stop 15, Stop.

1, the governor 18, the governor rope 20 and the tension pulley 21 are disposed behind the elevator car 8 in the front-rear direction of the elevator car 8 for the sake of simplicity, Is arranged so that the governor rope (20) passes right beside the elevator car (8).

Fig. 2 is an enlarged front view of the elevator car 8 of Fig. 1; The lower lifting lever 16 is rotatable about the lower lifting lever shaft 22. The lower emergency stop device 14 operates by rotating the lower lifting lever 16 in the counterclockwise direction (operating direction) of Fig. The upper lifting lever 17 is rotatable about the upper lifting lever shaft 23. The upper emergency stop 15 operates by rotating the upper lifting lever 17 counterclockwise (operating direction) in Fig.

A lower stopper bolt 31 as a lower stopper for restricting rotation in a direction opposite to the operating direction of the lower lifting lever 16 (clockwise direction in FIG. 2) is mounted on the lower portion of the car 8. An upper stopper bolt 32 as an upper stopper for restricting rotation in a direction opposite to the operating direction of the upper lifting lever 17 (clockwise direction in Fig. 2) is mounted on the upper portion of the elevator car 8. [

A lower rope fixing member (block) 33 and an upper rope fixing member (block) 34 are fixed to the governor rope 20. The upper rope fixing member 34 is fixed to the governor rope 20 at the upper portion of the lower rope fixing member 33.

The lower rope fixing member 33 is provided with a lower support arm 33a projecting horizontally. The upper rope fixing member 34 is provided with a horizontally projecting upper support arm 34a.

Between the lower support arm 33a and the lower lifting lever 16, there is provided a lower elastic body 35 which is expandable and contractible in the vertical direction. The lower lifting lever 16 is connected to the governor rope 20 via the lower elastic member 35 and the lower rope fixing member 33. [

Between the upper support arm 34a and the upper lifting lever 17, there is provided an upper elastic body 36 which can be stretched and contracted in the vertical direction. The upper lifting lever 17 is connected to the governor rope 20 via the upper elastic member 36 and the upper rope fixing member 34. [

The lower elastic member 35 and the upper elastic member 36 are elastically deformable in the vertical direction. As the lower elastic member 35 and the upper elastic member 36, for example, a spring such as a coil spring is used.

Fig. 3 is a front view showing an enlarged main part of the lower emergency stop 14 of Fig. 1, and Fig. 4 is a sectional view taken along line IV-IV of Fig. The lower emergency stop device 14 includes a guide body 24 having a pair of tapered guide surfaces 24a and 24b and a pair of wedges 25a and 25b disposed inside the guide body 24, Lt; / RTI > The wedges 25a and 25b slide along the guide surfaces 24a and 24b in association with the rotation of the lower lifting lever 16.

Fig. 5 is a front view showing the operation of the lower emergency stop 14 of Fig. 3, and Fig. 6 is a sectional view taken along the line VI-VI of Fig. When the lower lifting lever 16 is pulled up against the elevator car 8 and is rotated in the counterclockwise direction in Fig. 3, the wedges 25a and 25b move upward in conjunction with this. Then, the wedges 25a and 25b are inserted between the guide member 24 and the car guide rail 10. As a result, the braking force is generated and the car 8 stops.

In the normal state, the wedges 25a and 25b are in the lowered position, and the middle portion of the lower lifting lever 16 rests on the upper end of the lower stopper bolt 31. [ At this time, by adjusting the position of the lower stopper bolt 31 in the vertical direction, the rising distance e (Fig. 4) until the wedges 25a and 25b are fully inserted is determined. Since the wedges 25a and 25b rise completely by the rising distance e and can no longer move beyond the wedges 25a and 25b, the lower lifting lever 16 also rotates in the lifting direction from its position Can not.

The configuration and operation of the upper emergency stop device 15 is the same as that of the lower emergency stop device 14 and the upper emergency stop device 15 is also provided with a guide body 24 and wedges 25a and 25b.

The lower elastic member 35 and the upper elastic member 36 have a sufficiently high rigidity against the force of pulling up the lower lifting lever 16 and the upper lifting lever 17 and the wedges 25a, Stopping device 14 and the upper emergency stop device 15 by fully engaging the guide rail 24 and the car door guide rail 10 with each other.

It is to be noted that the lower elastic member 35 and the upper elastic member 36 are arranged in such a manner that only one of the lower emergency stop device 14 and the upper emergency stop device 15 operates when the car 8 falls, (8) is elastically deformed with respect to a force which is to be further dropped on the governor rope (20).

In this elevator device, a lower elastic member 35 is interposed between the lower lifting lever 16 and the governor rope 20, and a lower elastic member 35 is interposed between the upper lifting lever 17 and the governor rope 20, The lower elastic member 35 or the upper elastic member 36 shrinks even if the operation timing of the lower emergency stop device 14 and the upper emergency stop device 15 deviate from each other, The stoppers 14 and 15 can be operated more reliably.

That is, when the leading lever and the remainder are the trailing levers, one of the lifting levers 16 and 17, which first rotates to the operating position, is rotated to the operating position and then the stopped governor rope 20 As the car 8 is further lowered, the lower elastic member 35 or the upper elastic member 36 connected to the preceding lever is contracted and the rearward lever is rotated to the operating position.

Therefore, at the installation site of the elevator apparatus, fine adjustment is not performed to completely synchronize the lower emergency stop device 14 and the upper emergency stop device 15 within the range in which the elastic members 35 and 36 are deformable And the workability in the field can be improved. In addition, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated.

In the lower emergency stop device 14 and the upper emergency stop device 15, the same parts can be used.

The lower lifting lever 16 is connected to the governor rope 20 via the lower elastic member 35 and the lower rope fixing member 33. The upper lifting lever 17 is connected to the upper elastic member 36 And the upper emergency stop device 15 are connected to the governor rope 20 through the upper rope fixing member 34 and the upper rope fixing member 34. Even in the case of a product having a different distance between the lower emergency stop device 14 and the upper emergency stop device 15, (No design change).

Embodiment 2 Fig.

Next, Fig. 7 is a front view showing the elevator car 8 of the elevator apparatus according to the second embodiment of the present invention. The lower lifting lever 41 and the upper lifting lever 42 of the second embodiment are arranged so as to cross the governor rope 20. That is, the governor rope 20 passes through the lower lifting lever 41 and the upper lifting lever 42.

A lower rope fixing member (block) 43 and an upper rope fixing member (block) 44 are fixed to the governor rope 20. The upper rope fixing member 44 is fixed to the governor rope 20 at the upper portion of the lower rope fixing member 43. The rope fixing members 43 and 44 of the second embodiment are not provided with support arms projecting horizontally.

The lower elastic member 35 is sandwiched between the lower rope fixing member 43 and the lower lifting lever 41. The lower lifting lever 41 is connected to the governor rope 20 via the lower elastic member 35 and the lower rope fixing member 43. [

The upper elastic member 36 is sandwiched between the upper rope fixing member 44 and the upper lifting lever 42. The upper lifting lever 42 is connected to the governor rope 20 through the upper elastic member 36 and the upper rope fixing member 44. [ Thus, the lower lifting lever 41 and the upper lifting lever 42 are connected to the governor rope 20, so that the governor rope 20 can be lifted up or down even when the elevator car 8 is raised or lowered 8 (this point is also true in the following embodiments). The governor rope 20 passes through the lower elastic member 35 and the upper elastic member 36.

8 is a plan view showing the lower lifting lever 41 and the upper lifting lever 42 of Fig. The lower lifting lever 41 is provided with a lower longitudinal hole 41a through which the governor rope 20 is passed. The upper lifting lever 42 is provided with an upper elongated hole 42a through which the governor rope 20 passes. As a result, only the upward and downward movements are transmitted from the governor rope 20 to the lifting levers 41, 42. The other configuration is the same as that of the first embodiment.

9 shows a state in which the lower lifting lever 41 and the upper lifting lever 42 of FIG. 7 have different initial angles (the lower lifting lever 41 until the lower emergency stop 14 is activated) When the rotation stroke of the upper lifting lever 42 is different from the rotation stroke of the upper lifting lever 42 until the upper emergency stop 15 is operated). In this example, the initial angle? 2 of the upper lifting lever 42 is smaller than the initial angle? 1 of the lower lifting lever 41 (? 2 <? 1).

9, when the car 8 falls and the governor rope 20 is gripped by breakage or the like of the suspension member 7, the lower lifting lever 41 and the upper lifting lever 42 It is pulled up at the same time. However, since? 2 <? 1, as shown in Fig. 10, the upper lifting lever 42 first reaches the operating position.

At this time, in the upper emergency stop device 15, the wedges 25a and 25b are inserted between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the lower emergency stop device 14 , 25b) are not yet in place. If the elastic members 35 and 36 are not provided, the lower emergency stop device 14 does not operate because the lower lifting lever 41 does not rotate any more than that, and the entire emergency stop devices 14 and 15 Sufficient braking force can not be generated.

On the other hand, when the elastic members 35 and 36 are used, the governor rope 20 can be moved in the elevator car (for example, (The car 8 is moved downward with respect to the governor rope 20), and the lower lifting lever 41 can be further lifted. Then, as shown in Fig. 11, the lower lifting lever 41 can be rotated to the operating position after the upper lifting lever 42 as well.

Therefore, similarly to Embodiment 1, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability in the field.

In the first embodiment, since the elastic members 35 and 36 are disposed on the support arms 33a and 34a, a moment is generated in the governor rope 20 at the time of operation of the emergency stoppers 14 and 15, There is a possibility that the governor rope 20 is deformed in the vicinity of the rope fixing members 33, On the other hand, in the second embodiment, since the governor rope 20 is applied with only the upward and downward force, the governor rope 20 is hardly deformed during operation of the emergency stoppers 14, 15, (14, 15) can be operated more smoothly.

Further, in the second embodiment, since the elastic members 35 and 36 are disposed coaxially with the governor rope 20, space-saving in the horizontal direction can be achieved.

Furthermore, the same components can be used in the lower emergency stop device 14 and the upper emergency stop device 15.

Further, the same configuration can be applied to a product in which the distance between the lower emergency stop device 14 and the upper emergency stop device 15 is different (no design change is necessary).

Embodiment 3:

Next, Fig. 12 is a front view showing the elevator car 8 of the elevator apparatus according to Embodiment 3 of the present invention. In the third embodiment, a connecting rod 45 is connected between both ends of the governor rope 20. The connecting rod 45 is made of, for example, metal. The connecting rod 45 is provided with a lower supporting portion 45a and an upper supporting portion 45b.

The lower supporting portion 45a is disposed below the intermediate portion of the connecting rod 45. [ The upper support portion 45b is disposed above the intermediate portion of the connecting rod 45. [

The lower elastic member 35 is disposed on the lower supporting portion 45a and sandwiched between the lower lifting lever 41 and the lower supporting portion 45a. The lower lifting lever 41 is connected to the governor rope 20 via the lower elastic body 35 and the connecting rod 45. [

The upper elastic member 36 is disposed on the upper support portion 45b and is sandwiched between the upper lifting lever 42 and the upper support portion 45b. The upper lifting lever 42 is connected to the governor rope 20 through the upper elastic body 36 and the connecting rod 45. [ The lower elastic member 35 and the upper elastic member 36 surround the connecting rod 45.

The connecting rod 45 is passed through the lower elongated hole 41a of the lower lifting lever 41 and the upper elongated hole 42a of the upper lifting lever 42 (Fig. 8). The other configuration is the same as in the second embodiment.

13 is a front view showing the case where the initial elevation angles of the lower lifting lever 41 and the upper lifting lever 42 of FIG. 12 are different from each other. In this example, the initial angle? 1 of the lower lifting lever 41 is smaller than the initial angle? 2 of the upper lifting lever 42 (? 1 <? 2).

When the car 8 falls and the governor rope 20 is gripped by the breakage of the suspension member 7 or the like from the state of Fig. 13, the lower lifting lever 41 and the upper lifting lever 42 It is pulled up at the same time. However, since? 1 <? 2, as shown in FIG. 14, the lower lifting lever 41 first reaches the operating position.

At this time, in the lower emergency stop 14, the wedges 25a and 25b are inserted between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the upper emergency stop 15 , 25b) are not yet in place. If the elastic members 35 and 36 are not provided, the upper emergency stop device 15 does not operate because the upper lifting lever 42 does not rotate any more than it, and the entire emergency stop devices 14 and 15 Sufficient braking force can not be generated.

In contrast, when the elastic members 35 and 36 are used, the lower elastic member 35 contracts from the state of Fig. 14, so that the connecting rod 45 and the governor rope 20 Can be moved further in the upper direction with respect to the elevator car 8, and the upper lifting lever 42 can be further lifted. Then, as shown in Fig. 15, the upper lifting lever 42 can be rotated to the operating position following the lower lifting lever 41 as well.

Therefore, similarly to Embodiment 1, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability in the field.

Use of the connecting rod 45 prevents the governor rope 20 from being damaged by contact between the lifting levers 41 and 42 and the elastic members 35 and 36 in addition to the same effect as the second embodiment , It is possible to obtain an effect of achieving a long life span.

Embodiment 4.

Next, Fig. 16 is a front view showing the elevator car 8 of the elevator apparatus according to the fourth embodiment of the present invention. In the fourth embodiment, a rope fixing member (block) 46 is fixed to the governor rope 20. To the rope fixing member 46, an intermediate connecting member 47 is fixed. The intermediate connecting member 47 includes a rod portion 47a disposed in parallel with the governor rope 20 and a projection portion 47b projecting horizontally from the middle portion of the rod portion 47a and connected to the rope fixing member 46 ).

A rod-shaped lower connecting member 48 is rotatably connected to the lower lifting lever 16. The lower elastic member 35 is connected between the intermediate connecting member 47 and the lower connecting member 48. A rod-shaped upper linking member 49 is rotatably connected to the upper lifting lever 17. The upper elastic member 36 is connected between the intermediate connecting member 47 and the upper connecting member 49.

The lower lifting lever 16 is connected to the governor rope 20 through the lower linking member 48, the lower elastic body 35 and the intermediate linking member 47. The upper lifting lever 17 is connected to the governor rope 20 through the upper linking member 49, the upper elastic body 36 and the intermediate linking member 47.

The lower connecting member 48, the lower elastic member 35, the rod portion 47a, the upper elastic member 36 and the upper connecting member 49 are arranged in alignment on a straight line parallel to the governor rope 20. The other configuration is the same as that of the first embodiment.

17 is a front view showing a state in which the lower emergency stop device 14 and the upper emergency stop device 15 of Fig. 16 operate. The lower elastic member 35 is extended and the upper elastic member 36 is contracted so that the lower end of the lower lifting lever 16 and the upper end of the upper lifting lever 17 are connected to each other, (14) and the upper emergency stop (15) can be operated.

Therefore, similarly to Embodiment 1, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability in the field.

Further, the fixing portion of the governor rope 20 can be provided at one place, and the installation work can be made labor-saving (labor saving and labor reduction).

It is also possible to connect the lower elastic member 35 between the lower end of the rod portion 47a and the lower lifting lever 16 by extending the rod portion 47a up and down, The upper elastic body 36 may be connected between the lifting lever 17 and the upper elastic body. Thereby, the lower linking member 48 and the upper linking member 49 can be omitted.

Embodiment 5:

Next, Fig. 18 is a front view showing the elevator car 8 of the elevator apparatus according to Embodiment 5 of the present invention. A rope fixing member (block) 51 is fixed to the governor rope 20. The lower lifting lever 41 is rotatably connected to the rope fixing member 51. The governor rope 20 is passed through the lower long hole 41a (FIG. 8) of the lower lifting lever 41.

A lower end portion of the bar-shaped lower connecting member 52 is rotatably connected to the middle portion of the lower lifting lever 41. An upper end of the rod-shaped upper connecting member 53 is rotatably connected to the upper lifting lever 17. Between the upper end of the lower connecting member 52 and the lower end of the upper connecting member 53, an elastic body 54 which can be stretched and contracted in the vertical direction is connected.

The lower lifting lever 41 is connected to the governor rope 20 via the rope fixing member 51. [ The upper lifting lever 17 is connected to the governor rope 20 via the upper connecting member 53, the elastic body 54, the lower connecting member 52, the lower lifting lever 41 and the rope fixing member 51 . That is, in the fifth embodiment, an elastic body 54 is provided between the upper lifting lever 17 and the governor rope 20.

The initial angles of the lower lifting lever 41 and the upper lifting lever 17 are given advance differences in the factory. That is, the rotation stroke of the lower lifting lever 41 until the lower emergency stop device 14 is operated and the rotation stroke of the upper lifting lever until the upper emergency stop device 15 operates It is different. In Embodiment 5, the initial angle? 2 of the upper lifting lever 17 is smaller than the initial angle? 1 of the lower lifting lever 41 (? 2 <? 1).

The elastic body 54 has a sufficiently high rigidity against the force of pulling up the lower lifting lever 41 and the upper lifting lever 17 and the wedges 25a and 25b are guided by the guide body 24, And is not elastically deformed by the force for operating the lower emergency stop (14) and the upper emergency stop (15) by being completely inserted between the rail (10).

However, only one of the lower emergency stop device 14 and the upper emergency stop device 15 (the upper emergency stop device 15 in the fifth embodiment) is operated when the car 8 falls down So that the car 8 is elastically deformed with respect to the force that the car 8 is about to fall further to the governor rope 20 in a state. The other configuration is the same as that of the first embodiment.

When the car 8 falls and the governor rope 20 is gripped by the breakage of the suspension member 7 or the like from the state of Fig. 18, the lower lifting lever 41 and the upper lifting lever 17 It is pulled up at the same time. However, since? 2 &lt;? 1, the upper lifting lever 17 first reaches the operating position as shown in Fig.

At this time, in the upper emergency stop device 15, the wedges 25a and 25b are inserted between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the lower emergency stop device 14 , 25b) are not yet in place.

The governor rope 20 is further moved in the upward direction with respect to the car 8 in the range in which the elastic body 54 can be elastically deformed by the shrinkage of the elastic body 54 (Moves downward with respect to the lower lever 20), so that the lower lifting lever 41 can be further lifted. Then, as shown in Fig. 20, the lower lifting lever 17 can be rotated to the operating position.

Therefore, similarly to Embodiment 1, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability in the field.

Since the initial angles of the lower lifting lever 41 and the upper lifting lever 17 are different in advance, the number of the elastic bodies 54 can be reduced to one.

Moreover, the governor rope 20 is hard to deform during operation of the emergency stop devices 14, 15, so that the emergency stop devices 14, 15 can operate more smoothly.

In addition, there is only one fixing portion to the governor rope 20, so that the installation work can be improved.

It is also possible to directly connect the elastic member 54 to the lower lifting lever 41 or the upper lifting lever 17 by omitting the lower connecting member 52 or the upper connecting member 53. [

Embodiment 6:

Next, Fig. 21 is a front view showing the elevator car 8 of the elevator apparatus according to the sixth embodiment of the present invention. The upper lifting lever 42 is rotatably connected to the rope fixing member 51. The governor rope 20 is passed through the upper elongated hole 42a of the upper lifting lever 42.

The lower lifting lever 16 is rotatably connected to the lower end of the rod-shaped lower connecting member 52. [ The upper end of the rod-like upper connecting member 53 is rotatably connected to the middle portion of the upper lifting lever 42. [

The upper lifting lever 42 is connected to the governor rope 20 through a fixing member 51. [ The lower lifting lever 16 is connected to the governor rope 20 via the lower connecting member 52, the elastic body 54, the upper connecting member 53, the upper lifting lever 42 and the rope fixing member 51 . That is, in the sixth embodiment, an elastic body 54 is provided between the lower lifting lever 16 and the governor rope 20.

In Embodiment 6, the initial angle? 1 of the lower lifting lever 16 is smaller than the initial angle? 2 of the upper lifting lever 42 (? 1 <? 2). Other configurations are the same as those in the fifth embodiment.

With this configuration, the same effect as in the fifth embodiment can be obtained.

In addition, since only tensile load acts on the lower connecting member 52 and the upper connecting member 53, the strength of the connecting members 52 and 53 can be reduced. As a result, the design of the connecting members 52 and 53 can be facilitated, and the cost can be reduced.

Embodiment 7:

Next, Fig. 22 is a front view showing the elevator car 8 of the elevator apparatus according to the seventh embodiment of the present invention. The governor rope 20 is provided with a lower rope fixing member 43 as a lower supporting portion which is a supporting portion corresponding to the lower raising lever 41 and a lower rope fixing member 43 as a supporting portion corresponding to the upper raising lever 42, (44) is fixed.

The elastic member 54 surrounds the governor rope 20 and is sandwiched between the lower rope fixing member 43 and the lower lifting lever 41. The lower lifting lever 41 is connected to the governor rope 20 via the elastic member 54 and the lower rope fixing member 43. [ That is, in the seventh embodiment, an elastic body 54 is provided between the lower lifting lever 41 and the governor rope 20.

The upper raising lever 42 is rotatably connected to the upper rope fixing member 44. The upper lifting lever 42 is connected to the governor rope 20 via the upper rope fixing member 44. [ The other configuration is the same as in the sixth embodiment.

That is, in the seventh embodiment, the upper elastic member 36 is eliminated from the configuration of the second embodiment, and the initial angle? 1 of the lower lifting lever 41 is made smaller than the initial angle? 2 of the upper lifting lever 42 θ1 <θ2).

22, when the car 8 falls and the governor rope 20 is gripped by breakage or the like of the suspension member 7, the lower lifting lever 41 and the upper lifting lever 42 It is pulled up at the same time. However, since? 1 <? 2, as shown in FIG. 23, the lower lifting lever 41 first reaches the operating position.

At this time, in the lower emergency stop 14, the wedges 25a and 25b are inserted between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the upper emergency stop 15 , 25b) are not yet in place.

The governor rope 20 is further moved in the upward direction with respect to the car 8 in the range in which the elastic body 54 can be elastically deformed by the shrinkage of the elastic body 54 (Moves downward with respect to the upper lifting lever 20), so that the upper lifting lever 42 can be lifted further. Then, as shown in Fig. 24, the upper lifting lever 42 can be rotated to the operating position after the lower lifting lever 41 as well.

Therefore, similarly to Embodiment 1, the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability in the field.

As in the second embodiment, the governor rope 20 is not easily deformed and the space in the horizontal direction can be saved. The distance between the lower emergency stop device 14 and the upper emergency stop device 15 is The same configuration can be applied to other products (no design change is required).

In addition, since the initial angles of the lower lifting lever 41 and the upper lifting lever 17 are different from each other in advance, the number of the elastic bodies 54 can be reduced, and the cost and weight can be reduced.

Embodiment 8:

Next, Fig. 25 is a front view showing the elevator car 8 of the elevator apparatus according to the eighth embodiment of the present invention. In the eighth embodiment, the elastic member 54 of the seventh embodiment is disposed between the upper rope fixing member 44 and the upper lifting lever 42, and the lower lifting lever 41 is fixed to the lower rope fixing member 43, And the initial angle? 2 of the upper lifting lever 42 is made smaller than the initial angle? 1 of the lower lifting lever 41 (? 2 <? 1). That is, in the eighth embodiment, the elastic body 54 is provided between the upper lifting lever 42 and the governor rope 20. The other configuration is the same as in the seventh embodiment.

With this configuration, the same effect as in the seventh embodiment can be obtained.

Embodiment 9:

Next, Fig. 26 is a front view showing the elevator car 8 of the elevator apparatus according to the ninth embodiment of the present invention. In Embodiment 9, a connecting rod 45 is connected between both ends of the governor rope 20. The elastic member 54 is disposed on the upper support portion 45b and is sandwiched between the upper support portion 45b and the upper lifting lever 42. [ The lower lifting lever 41 is rotatably connected to the lower supporting portion 45a.

The lower lifting lever 41 is connected to the governor rope 20 via a connecting rod 45. [ The upper lifting lever 42 is connected to the governor rope 20 via the elastic body 54 and the connecting rod 45. [ That is, in Embodiment 9, an elastic body 54 is provided between the upper lifting lever 42 and the governor rope 20.

The initial angle? 2 of the upper lifting lever 42 is smaller than the initial angle? 1 of the lower lifting lever 41 (? 2 <? 1). The other configuration is the same as that of the first embodiment.

That is, in Embodiment 9, the lower elastic member 35 is eliminated from the configuration of Embodiment 3 (Fig. 12), and the initial angle [theta] 2 of the upper lifting lever 42 is set to be larger than the initial angle [theta] 1 of the lower lifting lever 41 It is small.

This configuration also makes it possible to operate the lower emergency stop device 14 and the upper emergency stop device 15 more reliably while improving the workability in the field as in the first embodiment.

In addition, similar to the third embodiment, by using the connecting rod 45, it is possible to prevent the governor rope 20 from being damaged by contact with the lifting levers 41, 42 and the elastic body 54, .

Embodiment 10:

Next, Fig. 27 is a front view showing the elevator car 8 of the elevator apparatus according to the tenth embodiment of the present invention. In the tenth embodiment, the elastic body 54 is disposed on the lower support portion 45a and is sandwiched between the lower support portion 45a and the lower lifting lever 41. The upper lifting lever 42 is rotatably connected to the upper supporting portion 45b.

The upper lifting lever 42 is connected to the governor rope 20 through a connecting rod 45. [ The lower lifting lever 41 is connected to the governor rope 20 via the elastic body 54 and the connecting rod 45. [ That is, in the tenth embodiment, an elastic body 54 is provided between the lower lifting lever 41 and the governor rope 20.

The initial angle? 1 of the lower lifting lever 41 is smaller than the initial angle? 2 of the upper lifting lever 42 (? 1 <? 2). The other configuration is the same as that of the ninth embodiment.

With this configuration, the same effect as in the ninth embodiment can be obtained.

In the above example, it is assumed that the initial angles? 1 and? 2 are different from each other so as to be easily explained in the figure. However, in reality, the relationship between the lifting lever and the wedge is also different (including the deviation), so that the rising distance e of the wedge may be different between the upper and lower emergency stops, even at the same initial angle. The present invention can sufficiently cope with such a case.

In addition, the elevator can be balanced. That is, the present invention can be applied even when the emergency stop device is mounted on the upper and lower sides of the balance weight.

In addition, the layout and the roping system of the entire elevator apparatus are not limited to the example of Fig. For example, the present invention is also applicable to an elevator apparatus of 2: 1 roping. In addition, for example, the position and the number of the traction machine are not limited to the example of Fig.

Furthermore, the present invention can be applied to various types of elevator apparatuses such as, for example, an elevator without a machine room, a double deck elevator, or a one shaft multi-car type elevator.

Claims (10)

A lifting body,
A lower emergency stop device mounted on the lower portion of the ascending / descending member,
An upper emergency stop device mounted on the upper portion of the ascending /
A governor rope that is installed in the hoistway and circulates along the lifting and lowering of the hoistway,
A lower lifting lever provided on the lower emergency stop and operating the lower emergency stop by being pulled up by the governor rope,
An upper raising lever which is provided in the upper emergency stop and operates the upper emergency stop by being pulled up by the governor rope,
Wherein the control unit monitors the presence or absence of traveling at an excessive speed of the ascending / descending member and, when the traveling speed of the ascending / descending member reaches an excessive speed, grasps the governor rope to operate the lower emergency stop and the upper emergency stop And,
Between the lower lifting lever and the governor rope, a lower elastic body is provided,
And an upper elastic body is provided between the upper lifting lever and the governor rope. The method according to claim 1,
The lower rope fixing member and the upper rope fixing member are fixed to the governor rope,
Wherein the lower elastic member is provided between the lower rope fixing member and the lower lifting lever,
Wherein the upper elastic member is provided between the upper rope fixing member and the upper lifting lever. The method of claim 2,
The lower lifting lever is provided with a lower elongated hole,
The upper lifting lever is provided with an upper slot,
Wherein the governor rope passes through the lower longitudinal hole and the upper longitudinal hole. The method according to claim 1,
A connecting rod is connected between both ends of the governor rope,
The connecting rod is provided with a lower supporting portion and an upper supporting portion,
The lower lifting lever is provided with a lower slot,
The upper lifting lever is provided with an upper slot,
Wherein the connecting rod is passed through the lower longitudinal hole and the upper longitudinal hole,
Wherein the lower elastic member is provided between the lower support portion and the lower lifting lever,
Wherein the upper elastic body is provided between the upper support portion and the upper lifting lever. The method according to claim 1,
An intermediate connecting member is connected to the governor rope,
Wherein the lower elastic member is provided between the intermediate connecting member and the lower lifting lever,
Wherein the upper elastic body is provided between the intermediate connecting member and the upper lifting lever. The elevator,
A lower emergency stop device mounted on a lower portion of the ascending / descending member,
An upper emergency stop device mounted on the upper portion of the ascending /
A governor rope attached to the hoistway and circulatingly moving in accordance with the ascending and descending of the hoistway,
A lower lifting lever provided on the lower emergency stop and operating the lower emergency stop by being pulled up by the governor rope,
An upper lifting lever provided on the upper emergency stop and operating the upper emergency stop by being pulled up by the governor rope,
A governor for monitoring the presence or absence of traveling at an excessive speed of the ascending / descending body, and for gripping the governor rope to operate the lower emergency stop and the upper emergency stop when the traveling speed of the ascending / descending body reaches an excessive speed Respectively,
An elastic body is provided between the governor rope and either one of the lower lifting lever and the upper lifting lever,
Wherein the rotary stroke of the lower lifting lever until the lower emergency stop device is operated differs in advance from the rotation stroke of the upper lifting lever until the upper emergency stop device operates. The method of claim 6,
A rope fixing member is fixed to the governor rope,
Either the lower lifting lever or the upper lifting lever is connected to the rope fixing member,
Wherein the lower lifting lever and the upper lifting lever are connected to each other via the elastic body. The method of claim 6,
The governor rope has a lower support portion as a support portion corresponding to the lower lifting lever and an upper support portion as a support portion corresponding to the upper lifting lever,
The elastic member is provided between any one of the lower lifting lever and the upper lifting lever and a supporting portion corresponding thereto,
And the other of the lower lifting lever and the lower lifting lever is connected to a supporting portion corresponding thereto. The method of claim 8,
Wherein the governor rope has a lower rope fixing member as the lower supporting portion and an upper rope fixing member as the upper supporting portion. The method of claim 8,
A connecting rod is connected between both ends of the governor rope,
Wherein the connecting rod is provided with the lower support portion and the upper support portion.

Images